Just curious about this, as it's probably the only thing that I find a weird choice here.

To me IEMs and portable headphones are completely different beasts - in fact portable HPs have more in common with full size HPs IMO.

It's no biggie as I can search on what I need, but I do find mildly irritating to go to the "Portable" sub forum and end up going through pages and pages of IEMs that I can't actually use, and that tends to put me off just dipping in and seeing what's going on in the world of portable HPs

Just my little forum bugbear, and guess the vast majority of you guys will see it differently